Septagon Construction Co Inc
Over its more than 50-year history, Septagon Construction has developed both simple and complex projects throughout the Midwest for both public and private sector clients.Over its more than 50-year history, Septagon Construction has developed both simple and complex projects throughout the Midwest for both public and private sector clients.
Martin Marietta Materials
Second largest producer of construction aggregates in the US, supplying the crushed stone, sand and gravel used to build the roads, sidewalks and foundations on which we live.Second largest producer of construction aggregates in the US, supplying the crushed stone, sand and gravel used to build the roads, sidewalks and foundations on which we live.
